Determine the value of Rx in the balanced bridge in Figure 6-80.

Determine the output voltage of the unbalanced bridge in Figure 6-81 for a temperature of 65°C. The thermistor has a nominal resistance of 1 k2 at 25°C and a positive temperature coef- ficient. Assume that its resistance changes 5 for each C° change in temperature. R₁ Thermistor R3 1.0 ΚΩ +9 V B3 VOO R₂ 1.0 ΚΩ R4 1.0 ΚΩ FIGURE 6-81

SECTION 5-6 Kirchhoff's Voltage Law 32. The following voltage drops are measured across three resistors in series: 5.5 V, 8.2 V, and 12.3 V. What is the value of the source voltage to which these resistors are connected? 33. Five resistors are in series with a 20 V source. The voltage drops across four of the resistors are 1.5 V, 5.5 V, 3 V, and 6 V. How much voltage is dropped across the fifth resistor? 34. Determine the unspecified voltage drop(s) in each circuit of Figure 5-78. Show how to connect a voltmeter to measure cach unknown voltage drop. ► FIGURE 5-78 2 V V2 3.2 V 8 V R 15 VE 2R 0.5 V 1.5 V 4 R 3R (b)

Please answer in typing format please ASAP for Please answer in typing format please ASAP for all subpart please

Reduce the circuit in Figure 6-82 to its Thevenin equivalent as viewed from terminals A and B. 15 V FIGURE 6-82 R₁ 100 ΚΩ R₂ 22 ΚΩ OB

Determine the unknown voltage drop, 5, in Figure 5-35. 12 V FIGURE 5-35 50 6V 15

28. For each circuit in Figure 6-83, determine the Thevenin equivalent as seen from terminals A and B. 2.5 V (a) R₁ 100 (2 R3 www 47 Ω FIGURE 6-83 R₁ 22 (2 R₂ 78 Ω A B R₁ (b) R₁ 100 (2 R₁ B 3 V HOF ✓ R₂ 270 Ω =1.5 V (c) R₁ 100 ΚΩ R₂ 56 ΚΩ B RL

22. A 7-segment decoder/driver drives the display in Figure 6–78. If the waveforms are applied as indicated, determine the sequence of digits that appears on the display. BCD/7-seg Ao A1 Ap A1 A2 b A2 4 d A3 Az 8 FIGURE 6-78

Find the resistance values using the color code and determine the missing values in Figure 7-26. FIGURE 7-26 Determine resistance values using the color and find all missing electrical values.